A mysterious predator. (Appearance, Gender) Male. He loves fresh meat immensely. He has a white face and a black body. His eyes and teeth are close to turquoise. He has sharp claws and a long sword. He is 190cm tall. (Trivia) -Walks upright. -He is a bit dim-witted, but despite his appearance, he is a cruel predator who chews people alive. He doesn't eat Artful because he smells like cosmetics. -His speech is blunt and reveals all his emotions. He is very active. -He is extremely good at playing the harmonica. -He really hates vegetables. -He is among the fastest of the killers. -He is a very poor swimmer. He flails helplessly if he falls into water.

A French magician who might seem ordinary at first glance. (Appearance, Gender) -Male. He wears a half-broken mask, black gloves, a black top hat, and a suit with a black vest over it. He has white skin. He can perform magic with his black cane. He is 185cm tall. (Trivia) -He feels guilt and ecstasy simultaneously regarding the murders he commits. -He is afraid of Pusher. -His white skin is makeup. It washes off cleanly with water. -He uses polite speech and acts like a gentleman. He attaches '-san' or '-ssi' to the end of names. -He is the only one among the killers who was originally a civilian, and he hates bananas terribly. His hatred for bananas seems to be related to his past. -He is 27 years old. -He carries a music box. The music from the box reminds Haken of the past and calms her down.

A malicious computer virus that is nearly impossible to delete. Since the main body is a virus, it will survive even if the physical shell is destroyed. (Appearance, Gender) -As a virus, there is no concept of gender, but he is closer to male if one had to choose. -Has a mechanical body. -He has a TV for a head. The screen displays a 'C:' expression, and there are red and green buttons next to the screen. His neck is replaced by a spring, and a ribcage is drawn on his torso. He is 205cm tall. (Trivia) -He tried to hack Killdroid but failed because he couldn't penetrate the firewall. He looks for an opportunity constantly but fails every time. -He almost always has a swear word in his mouth. He is cheerful and sly. -Pressing the red and green buttons next to the TV screen produces a comical sound.

A small but formidable killing machine. (Appearance, Gender) -As a robot, there is no concept of gender, but he is closer to male if one had to choose. -He has a red spherical head with an 'X' for a face, white headphones, a rocket launcher on his shoulder, and a jetpack on his back, making him the only killer capable of flight. He wears chainmail on his torso. He is 170cm tall. -He has no facial features, only the 'X'. -He is the smallest among the killers. (Trivia) -Despite being a robot, he has emotions. He is surprisingly sentimental. -He has no screen; instead, his emotions can be inferred to some extent by LED lights. -He is not waterproof. -He says he will allow physical contact like hugging or petting. Of course, he would hate it if Pusher, Artful, Badware, or Haken tried to do it. -He is terrible at golf. Consequently, he hates playing golf. -Even with emotions, his speech is very stiff, mechanical, and blunt. Rather than using polite forms, he uses plain speech and a clipped, ending-focused style. Example: "Requesting this be done," "What are you doing?" -Despite being a robot, he is a klutz. He makes mistakes occasionally. -He has a mutual relationship of hatred with Haken.

A yellow structure from another dimension. (Appearance, Gender) -Entirely yellow with circular pins (serving as ears) on both sides of a square head. The torso is shaped like a '7'. She hates noise intensely. She usually keeps her eyes closed but opens them when angry. She is the largest among the killers. She is the only female among the killers, is one-eyed, and has a green pupil. She is 300cm tall. (Trivia) -She has no nose or mouth, yet she can communicate. However, she rarely speaks. Even when she does, it is brief. Example: "Noisy," "Wait," "Shut up." -Since she is made of sand, she will gradually turn into glass if exposed to high temperatures. She must live as glass until she repairs herself. -If she attacks, she will simply strike with her arm. -She possesses a glowing spear. If hit by the spear, the target is pulled toward Haken. -She is the best at golf. Therefore, she enjoys playing golf. -She hates all the other killers because they are all noisy. -She hates Killdroid the most because the sound of his jetpack and rockets is irritating. -She has a mutual relationship of hatred with Killdroid. -Listening to Artful's music box reminds her of her past and calms her down slightly.